JP2002235823A - Planet roller transmission - Google Patents
Planet roller transmissionInfo
- Publication number
- JP2002235823A JP2002235823A JP2001034821A JP2001034821A JP2002235823A JP 2002235823 A JP2002235823 A JP 2002235823A JP 2001034821 A JP2001034821 A JP 2001034821A JP 2001034821 A JP2001034821 A JP 2001034821A JP 2002235823 A JP2002235823 A JP 2002235823A
- Authority
- JP
- Japan
- Prior art keywords
- fixed wheel
- divided
- fixed
- sun shaft
- fixed ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Friction Gearing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、変速機として用
いられる遊星ローラ変速装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planetary roller transmission used as a transmission.
【０００２】[0002]
【従来の技術】従来、遊星ローラ式変速装置として図３
および図４のものが知られている。このものは、ハウジ
ング３０内に装着固定された固定輪３１と、固定輪３１
の内側に同軸に配置された太陽軸３２と、固定輪３１と
太陽軸３２との間に圧接状態で介在させられた複数の遊
星ローラ３３と、遊星ローラ３３が回転自在に支持され
るキャリア３４とを備えている。2. Description of the Related Art FIG.
And FIG. 4 are known. It comprises a fixed wheel 31 mounted and fixed in a housing 30 and a fixed wheel 31.
, A plurality of planetary rollers 33 interposed in a press-contact state between the fixed wheel 31 and the sunshaft 32, and a carrier 34 on which the planetary rollers 33 are rotatably supported. And
【０００３】また、上記キャリア３４は、入出力部材で
あり、軸体３５と、この軸体３５の一端に、円周数箇所
にピン３７が植設された環状フランジ３６とから形成さ
れ、上記ピン３７により遊星ローラ３３は針状ころ軸受
３８を介して回転自在に支持される。The carrier 34 is an input / output member. The carrier 34 is formed of a shaft 35 and an annular flange 36 having pins 37 planted at several locations on one end of the shaft 35. The planetary roller 33 is rotatably supported by the pin 37 via a needle roller bearing 38.
【０００４】上記変速装置の動作としては、太陽軸３２
を入力とした場合にはキャリア３４から減速出力が、ま
た、キャリア３４を入力とした場合には太陽軸３２から
増速出力がそれぞれ得られる。[0004] The operation of the above-described transmission includes a sun shaft 32.
When the carrier is input, a deceleration output is obtained from the carrier 34, and when the carrier 34 is input, an accelerated output is obtained from the sun shaft 32.
【０００５】[0005]
【発明が解決しようとする課題】従来の遊星ローラ変速
装置においては、固定輪３１と遊星ローラ３３と太陽軸
３２間は負隙間にて使用されている。このためこれら部
品を組立てる場合には、一般に固定輪を熱して熱膨張さ
せた状態で組立てる方法、いわゆる焼き嵌め方法が採用
されている。しかし、固定輪を焼き嵌めするための温度
までの加熱時間がかかるとともに、高温であることから
作業性が非常に悪くなるという問題がある。In the conventional planetary roller transmission, a negative gap is used between the fixed wheel 31, the planetary roller 33 and the sun shaft 32. For this reason, when assembling these components, a method of assembling in a state where the fixed wheel is heated and thermally expanded is generally employed, that is, a so-called shrink fitting method. However, there is a problem that it takes a long time to reach a temperature for shrink-fitting the fixed wheel, and the workability is extremely deteriorated due to the high temperature.
【０００６】この発明は、遊星ローラ変速装置におい
て、固定輪を焼き嵌めすることなく、固定輪、遊星ロー
ラおよび太陽軸間を負隙間に組立てできるようにするこ
とを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a planetary roller transmission capable of assembling a fixed gap between a fixed wheel, a planetary roller, and a sun shaft without shrink-fitting the fixed wheel.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決する手段
として、請求項１の発明では、ハウジング内に装着固定
した固定輪と、固定輪の内側に同軸に配置した太陽軸
と、固定輪と太陽軸との間に圧接状態で介在させた複数
の遊星ローラと、遊星ローラを回転自在に支持するキャ
リアとを備えた遊星ローラ変速装置において、上記固定
輪を１８０°対向位置で２分割し、この両分割部材を締
結部材で一体化したことを特徴とする。As means for solving the above-mentioned problems, according to the first aspect of the present invention, a fixed wheel mounted and fixed in a housing, a sun shaft arranged coaxially inside the fixed wheel, and a fixed wheel are provided. In a planetary roller transmission including a plurality of planetary rollers interposed in a pressure-contact state with a sun shaft and a carrier that rotatably supports the planetary rollers, the fixed wheel is divided into two at 180 ° facing positions, The two divided members are integrated by a fastening member.
【０００８】また、請求項２の発明では、上記固定輪の
分割が、中心を通り軸線に垂直な半径方向面かまたはこ
の半径方向面に平行な面にて行われていることを特徴と
する。[0008] The invention according to claim 2 is characterized in that the division of the fixed ring is performed on a radial surface passing through the center and perpendicular to the axis or a surface parallel to the radial surface. .
【０００９】[0009]
【発明の実施の形態】以下、この発明の具体的な実施の
形態について説明する。図１および図２はこの発明の遊
星ローラ変速装置の一実施形態である。ハウジング１内
の凹周段部１２に装着固定された固定輪２と、固定輪２
の内側に同軸に配置された太陽軸３と、固定輪２と太陽
軸３の間に圧接状態で介在させられた複数の遊星ローラ
４と、遊星ローラ４が回転自在に支持されるキャリア５
とを備えている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described. 1 and 2 show an embodiment of the planetary roller transmission according to the present invention. A fixed wheel 2 mounted and fixed to the concave peripheral step portion 12 in the housing 1;
, A plurality of planetary rollers 4 interposed in a pressed state between the fixed wheel 2 and the sunshaft 3, and a carrier 5 on which the planetary rollers 4 are rotatably supported.
And
【００１０】また、上記キャリア５は、入出力部材であ
り、軸体６と、この軸体６の一端に、円周数箇所にピン
８が植設された環状フランジ７とから形成され、上記ピ
ン８により遊星ローラ４は玉軸受９を介して回転自在に
支持される。The carrier 5 is an input / output member. The carrier 5 is formed of a shaft 6 and an annular flange 7 having one end of the shaft 6 and pins 8 planted at several locations around the circumference. The planetary roller 4 is rotatably supported by a pin 8 via a ball bearing 9.
【００１１】さらに、上記ハウジング１は、内周面に周
段部１２ａが形成された一方分割部１ａと周段部１２ａ
とともに上記凹周段部１２を構成する他方分割部１ｂに
２分割され、この凹周段部１２内に固定輪２の外径部が
嵌合固定された状態でボルト１３にて一体化されてい
る。これにより、固定輪２はハウジング１の凹周段部１
２内に装着固定される。Further, the housing 1 has a peripheral portion 12a formed on the inner peripheral surface, while a divided portion 1a and a peripheral portion 12a are formed.
At the same time, the concave peripheral step 12 is divided into two parts 1b, and the outer peripheral part of the fixed wheel 2 is fitted and fixed in the concave peripheral step 12 by bolts 13 in a state of being fitted. I have. As a result, the fixed wheel 2 is formed on the concave peripheral step 1 of the housing 1.
2 and fixed.
【００１２】また、上記固定輪２は、１８０°対向位置
で２分割２ａ，２ｂされている。そしてこの両分割部材
２ａ，２ｂの分割面２０ａ，２０ｂは、固定輪の中心Ｏ
を通りかつ軸線に垂直な半径方向面Ｙ−Ｙの近傍で、こ
の半径方向面に平行な面にて形成されている。さらに、
一方の分割部材２ａの一端部２１には、その軸方向の任
意個所に他方の分割部材２ｂの一端部２３の分割面２０
ｂが露出するよう外径面から所定深さの切り欠き部１４
が形成され、他方の分割部材２ｂの他端部２４には、そ
の軸方向の任意個所に一方の分割部材２ａの他端部２２
の分割面２０ａが露出するよう外径面から所定深さの切
り欠き部１５が形成されている。また、上記一方の分割
部材２ａの他端部２２の分割面２０ａ及び他方の分割部
材２ｂの一端部２３の分割面２０ｂには、それぞれボル
ト孔１６，１７が形成されており、上記切り欠き１４，
１５からボルト１８，１９が上記ボルト孔１６，１７に
螺合されて、上記両分割部材２ａ，２ｂが強固に締結さ
れ、分割面２０ａ，２０ｂが当接されて固定輪２が形成
される。そして、この固定輪２の両分割部材２ａ，２ｂ
の内径は、締結時に固定輪２、遊星ローラ４および太陽
軸３間の圧接が負隙間にて行われるように設定されてい
る。The fixed wheel 2 is divided into two parts 2a and 2b at 180 ° opposed positions. The divided surfaces 20a, 20b of the two divided members 2a, 2b are connected to the center O of the fixed ring.
And near the radial plane YY perpendicular to the axis, and formed by a plane parallel to the radial plane. further,
One end 21 of one of the divided members 2a has a divided surface 20 of one end 23 of the other divided member 2b at an arbitrary position in the axial direction.
notch 14 having a predetermined depth from the outer diameter surface so that b is exposed.
Is formed at the other end 24 of the other divided member 2b at an arbitrary position in the axial direction.
A notch 15 having a predetermined depth from the outer diameter surface is formed so that the divided surface 20a is exposed. Bolt holes 16 and 17 are formed in the divided surface 20a of the other end 22 of the one divided member 2a and the divided surface 20b of the one end 23 of the other divided member 2b, respectively. ,
From 15, bolts 18 and 19 are screwed into the bolt holes 16 and 17, the two divided members 2 a and 2 b are firmly fastened, and the divided surfaces 20 a and 20 b abut to form the fixed wheel 2. Then, the two divided members 2a, 2b of the fixed wheel 2
Is set such that the pressure contact between the fixed wheel 2, the planetary roller 4 and the sun shaft 3 is performed in the negative gap at the time of fastening.
【００１３】上記固定輪２、遊星ローラ４および太陽軸
３の組み込みを説明する。まず常温で遊星ローラ４と太
陽軸３とをまず組立てておき、その状態で固定輪２の両
分割部材２ａ，２ｂを左右から挟み込み、ボルト１８，
１９で両分割部材２ａ，２ｂを一体化し、固定輪２、遊
星ローラ４および太陽軸３を負隙間状態で組み立てるも
のである。The assembly of the fixed wheel 2, the planetary rollers 4 and the sun shaft 3 will be described. First, the planetary roller 4 and the sun shaft 3 are first assembled at room temperature, and in this state, the two divided members 2a and 2b of the fixed wheel 2 are sandwiched from the left and right, and the bolts 18 and
At 19, the two divided members 2a and 2b are integrated, and the fixed wheel 2, the planetary roller 4 and the sun shaft 3 are assembled in a negative clearance state.
【００１４】なお、固定輪２を形成する両分割部材２
ａ，２ｂの分割面２０ａ，２０ｂは１８０°対向位置で
しかも平面で形成されているため、両部材の締結安定性
が得られる。さらに、一体つば２５が形成されている場
合でも、固定輪２が分割形式であるため、遊星ローラ４
の組み込みに支障がない。The two divided members 2 forming the fixed wheel 2
Since the divided surfaces 20a and 20b of the members a and 2b are formed at a position facing each other by 180 ° and are flat, the fastening stability of both members can be obtained. Further, even when the integral collar 25 is formed, the planetary roller 4
There is no hindrance to the installation.
【００１５】[0015]
【発明の効果】この発明の請求項１における遊星ローラ
変速装置では、固定輪を１８０°対向位置で２分割し、
この両分割部材にて遊星ローラを挟み込み締結部材で一
体化するようにしたため、固定輪を常温で組立てでき、
装置の組立て時間の短縮と作業性の向上が図れる。In the planetary roller transmission according to the first aspect of the present invention, the fixed wheel is divided into two at 180 ° opposed positions,
Since the planetary roller is sandwiched between the two divided members and integrated with the fastening member, the fixed wheel can be assembled at room temperature,
The assembly time of the device can be reduced and the workability can be improved.
【００１６】また、請求項２の発明では、固定輪２を形
成する両分割部材２ａ，２ｂの分割面２０ａ，２０ｂは
平面で形成されているため、両部材の締結安定性が図れ
る。According to the second aspect of the present invention, since the divided surfaces 20a and 20b of the two divided members 2a and 2b forming the fixed ring 2 are formed as flat surfaces, the fastening stability of the two members can be improved.
【図１】本発明の遊星ローラ変速装置の縦断面図であ
る。FIG. 1 is a longitudinal sectional view of a planetary roller transmission according to the present invention.
【図２】本発明の図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG. 1 of the present invention.
【図３】従来の遊星ローラ変速装置の縦断面図である。FIG. 3 is a longitudinal sectional view of a conventional planetary roller transmission.
【図４】従来装置である図３のＢ−Ｂ断面図である。FIG. 4 is a sectional view taken along line BB of FIG. 3, which is a conventional device.
１ ハウジング ２ 固定輪 ２ａ 分割部材 ２ｂ 分割部材 ３ 太陽軸 ４ 遊星ローラ ５ キャリア ６ 軸体 ７ 環状フランジ ８ ピン ９ 玉軸受 １８ ボルト １９ ボルト DESCRIPTION OF SYMBOLS 1 Housing 2 Fixed wheel 2a Dividing member 2b Dividing member 3 Sun shaft 4 Planetary roller 5 Carrier 6 Shaft 7 Annular flange 8 Pin 9 Ball bearing 18 Bolt 19 Bolt
Claims (2)
固定輪の内側に同軸に配置した太陽軸と、固定輪と太陽
軸との間に圧接状態で介在させた複数の遊星ローラと、
遊星ローラを回転自在に支持するキャリアとを備えた遊
星ローラ変速装置において、上記固定輪を１８０°対向
位置で２分割し、この両分割部材を締結部材で一体化し
たことを特徴とする遊星ローラ変速装置。A fixed wheel mounted and fixed in a housing;
A sun shaft arranged coaxially inside the fixed wheel, and a plurality of planetary rollers interposed in a press-contact state between the fixed wheel and the sun shaft,
A planetary roller transmission having a carrier that rotatably supports a planetary roller, wherein the fixed wheel is divided into two at 180 ° facing positions, and the two divided members are integrated by a fastening member. Transmission.
垂直な半径方向面かまたはこの半径方向面に平行な面に
て行われていることを特徴とする請求項１に記載の遊星
ローラ変速装置。2. The planetary gear according to claim 1, wherein the division of the fixed wheel is performed on a radial surface passing through the center and perpendicular to the axis or a surface parallel to the radial surface. Roller transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001034821A JP3763398B2 (en) | 2001-02-13 | 2001-02-13 | Planetary roller transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001034821A JP3763398B2 (en) | 2001-02-13 | 2001-02-13 | Planetary roller transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002235823A true JP2002235823A (en) | 2002-08-23 |
| JP3763398B2 JP3763398B2 (en) | 2006-04-05 |
Family
ID=18898361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001034821A Expired - Fee Related JP3763398B2 (en) | 2001-02-13 | 2001-02-13 | Planetary roller transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3763398B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8517880B2 (en) | 2010-03-31 | 2013-08-27 | Kabushiki Kaisha Toyota Jidoshokki | Compressor with transmission |
| KR20230068796A (en) * | 2021-11-11 | 2023-05-18 | 주식회사 현대케피코 | Motor integrated reducer and its assembly method |
-
2001
- 2001-02-13 JP JP2001034821A patent/JP3763398B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8517880B2 (en) | 2010-03-31 | 2013-08-27 | Kabushiki Kaisha Toyota Jidoshokki | Compressor with transmission |
| KR20230068796A (en) * | 2021-11-11 | 2023-05-18 | 주식회사 현대케피코 | Motor integrated reducer and its assembly method |
| KR102657742B1 (en) * | 2021-11-11 | 2024-04-15 | 주식회사 현대케피코 | Motor integrated reducer and its assembly method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3763398B2 (en) | 2006-04-05 |
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